IPA: /ˌmaɪ.kroʊˈpʌl.seɪ.ʃən/
KK: /maɪkroʊˈpʌlseɪʃən/
A very small change in the strength of a magnetic field or a short period of pulsation.
The scientists measured the micropulsation of the Earth's magnetic field during the experiment.
Micropulsation → It is formed from "micro-" (from Greek "mikros", meaning small) and "pulsation" (from Latin "pulsare", meaning to beat or to push). The word refers to a small or minute beating or movement, often used in scientific contexts to describe tiny oscillations or vibrations.
Think of 'small' ('micro-') movements or 'beats' ('pulsation') to remember that micropulsation refers to tiny oscillations.